it uses the very finest world war ii ground-based technology. you have better way of finding and your honda accord and the government uses to track airplanes. that is got to change initiate change over time and i hope that will change. there is some progress being made. but if you think about value to our society, let's take the waste peoples time off the table, an enormous amount. think of the fuel burn allowed. inc. of that impact on our environment alone. a modern air traffic control system could reduce fuel usage by 10%. i united airlines alone, our company, we burn 100 million barrels of oil a year. that's more than one day supply of oil in the world. more than one day supply of oil in the world. let's pretend half of that is burned in the u.s. 10% is 5 million barrels. oil is $120 a barrel. it's a lot of money. it's also a lot of pollution. so environmentalists should be supporting an air traffic control system good for the environment. so we have a business today that is transforming it sells. we need our government to assist us in our tr